Evaluation of Treatments in 1996 in VA, WV, and NC

  
Index of treatment success
T = 1 - [Nt/Nt -1]*[nt -1/nt]
Index of colony presence
C = Nt/nt

Map of treatment blocks

Table with full information

(view with Excel, see legend)
Treatment Evaluation
Explained
 		Nt and nt are average moth counts in pheromone traps in year t in the treatment block and in the control area around it, respectively. Treatment is done in year t. In the case of mating disruption or intensive trapping, evaluation is performed in year t +1. Thus, Nt and nt in equations for T and C are replaced by Nt+1 and nt+1. If values of nt-1 or nt are less than 0.05, then they are replaced by the value of 0.05 for estimating of T. Treatment is successful if T > 0.67; partially successful if 0.33 < T < 0.67; and unsuccessful if T < 0.33. If C is much >1, then the colony is still present and may require additional treatments.

 #  Block Name                    State County         Agent  Dose    Area,ac    T      T2       C    PPA 
 1  Hobgood                       NC    Halifax        PF     1        1076     1.00    1.00    0.00   165
 2  NorthMtn                      VA    Botetourt      PF     1        3593     1.00    0.75    0.00   85
 3  Roanoke                       VA    Botetourt      Bt     2         247     0.84     ---    0.28   88
 4  Hillsville                    VA    Carroll        PF     1         432     1.00    0.89    0.00   50
 5  LittleStony                   VA    Giles          Bt     2         811     1.00     ---    0.00   51
 6  DoeCreek                      VA    Giles          Bt     2         772     0.98     ---    0.25   51
 7  Swansonville                  VA    Pittsylvania   Bt     2        2904     0.54     ---    3.55   103
 8  Soapstone                     VA    Pittsylvania   Bt     2        1793     0.83     ---    1.86   103
 9  Courtland                     VA    Southhampton   Bt     2        4206     0.94     ---    0.32   -1
10  Margarettsville               VA    Southhampton   PF     1        2914     0.91    0.95    0.23   -1
11  Boykins                       VA    Southhampton   Bt     2        1327     0.32     ---    2.97   -1
12  FiveMileCreek                 WV    Mercer         PF     1         339     1.00    1.00    0.00   18
13  EastRiverMtn                  WV    Mercer         DM     1        1216     0.98     ---    2.84   18
14  ElkKnob                       WV    Monroe         Bt     2        4024     0.88     ---    0.61   59
15  Hollywood                     WV    Monroe         Bt     1         630     0.96     ---    0.33   59
16  Gates                         WV    Monroe         Bt     1         725     0.69     ---    3.00   54
17  LittleMtn.                    WV    Monroe         Bt     1        1295     0.89     ---    0.84   54
18  TurkeyCreek                   WV    Monroe         Bt     2        4557     0.95     ---    0.30   54
19  HangingRock                   WV    Monroe         PF     1        3861     0.97    1.00    0.15   54
20  KeeneyMtn                     WV    Summers        Bt     1         518     0.88     ---    4.68   88
21  Crossroads                    WV    Summers        Bt     1         320     0.79     ---    2.53   34

PPA = Potential Problem Area, detected by the Decision Algorithm from previous year data.
Treatment agents: Btk (or Bt, BT) = Bacillus thuringiensis var. kurstaki;
MD (or PF) = Mating disruption with pheromone flakes containing disparlure;
NPV = virus, preparation Gypchek;
DIM = Dimilin (=diflubenzuron);
Trap = Mass trapping;

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